// ============================================================================
//
// Copyright (C) 2006-2007 Dengues
//
// Google Group: http://groups.google.com/group/dengues
// QQ Group: 24885404
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
// ============================================================================
package org.dengues.designer.ui.editors.actions;

import java.util.ArrayList;
import java.util.List;

import org.dengues.core.process.CompElement;
import org.dengues.designer.ui.i18n.Messages;
import org.dengues.designer.ui.process.models.CompProcess;
import org.dengues.model.database.DiagramChild;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.ui.actions.Clipboard;
import org.eclipse.gef.ui.actions.SelectionAction;
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.actions.ActionFactory;

/**
 * Qiang.Zhang.Adolf@gmail.com class global comment. Detailled comment <br/>
 * 
 * $Id: Dengues.epf 1 2006-09-29 17:06:40Z qiang.zhang $
 * 
 */
public class GEFCopyAction extends SelectionAction {

    /**
     * Qiang.Zhang.Adolf@gmail.com GEFCopyAction constructor comment.
     * 
     * @param part
     */
    public GEFCopyAction(IWorkbenchPart part) {
        super(part);
        setId(ActionFactory.COPY.getId());
        setText(Messages.getString("GEFCopyAction.copy")); //$NON-NLS-1$
        ISharedImages sharedImages = part.getSite().getWorkbenchWindow().getWorkbench().getSharedImages();
        setImageDescriptor(sharedImages.getImageDescriptor(ISharedImages.IMG_TOOL_COPY));
        setDisabledImageDescriptor(sharedImages.getImageDescriptor(ISharedImages.IMG_TOOL_COPY_DISABLED));
    }

    @Override
    protected boolean calculateEnabled() {
        List objects = getSelectedObjects();
        if (objects.isEmpty()) {
            return false;
        }
        for (Object object : objects) {
            if (!(object instanceof EditPart)) {
                return false;
            }
            EditPart edit = (EditPart) object;
            if (edit.getModel() instanceof DiagramChild) {
                return true;
            }
            if (edit.getModel() instanceof CompElement) {
                if (edit.getModel() instanceof CompProcess) {
                    return false;
                }
                return true;
            }
        }
        return false;
    }

    @Override
    public void run() {
        List objects = getSelectedObjects();
        if (!objects.isEmpty()) {
            List newObjects = new ArrayList();
            Clipboard clipboard = Clipboard.getDefault();
            for (Object object : objects) {
                EditPart edit = (EditPart) object;
                newObjects.add(edit.getModel());
            }
            clipboard.setContents(newObjects);
        }
    }
}
